对不同类型的步行运动背后的肌肉协调模式进行比较分析
Lotte Hagedoorn1, Edwin van Asseldonk2, Vivian Weerdesteyn3,4
1Department of Rehabilitation, Donders Institute for Brain, Cognition and Behavior, Radboud University Medical Center, Nijmegen, The Netherlands. lotte.hagedoorn@radboudumc.nl.
Experimental brain research
|July 8, 2025
概括
肌肉协调在反应性和自愿性步骤之间有所不同,反应性步骤显示出独特的肌肉协同作用. 了解这些差异可能会改善预防跌倒的培训策略.
科学领域:
- 生物力学 生物力学
- 神经科学是一个神经科学.
- 发动机控制器的控制器
背景情况:
- 反应性步行对于在失去平衡后预防跌倒至关重要.
- 基于扰乱的训练提高了反应性步骤的质量,与自愿的步骤训练不同.
- 动力模拟的动作观察为改善反应性步进提供了一个潜在的替代方案.
研究的目的:
- 为了研究任务特异效应的神经支.
- 为了比较反应性,自愿性和观察到的反应性步进过程中的肌肉协调模式.
主要方法:
- 记录了八个腿部/干部肌肉的电肌图 (EMG) 信号.
- 肌肉协同分析确定了肌肉重量和时间激活配置文件.
- 试验对象在五个方向上执行了反应性,自愿性和观察性反应性步骤.
主要成果:
- 在所有步骤类型中,一致招募了三个肌肉协同作用.
- 反应式步进通常涉及第四个协同效应 (直腿骨,足骨).
- 时间激活和身体配置因步骤类型而异.
结论:
- 肌肉协调模式在反应性步进和自愿步进之间有所不同.
- 反应性步行中较高的肌肉激活反映了更大的生物力学需求.
- 这些发现可能会阐明不同训练方案在预防跌倒方面的有效性.
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